Method of and apparatus for separating foreign matter from paper stock



May 6, 1924.

A. J. HAUG METHOD OF AND APPARATUS FOR SEPARATING FOREIGN MATTER FROM PAPER STOCK QSheets-S heefl 1 nvenio r.- uilniow JH M/ Filed Nov. 21.

M47051 is.

May a, 1924. 1,492,795

' A. J. HAUG METHOD OF AND APPARATUS FOR SEPARATING FOREIGN MATTER FROM PAPER STOCK Filed Nov. 21. 1919 2 Sheets-Sheet 2 Patented May-8, 1924.

UNITED STATES.

PATENT OFFICE.

ANTON J. HAUG, F KASEUA, NEW HAMPSHIRE, ABSIGNOB TO IMPROVED PAPm MACHINERY COMPANY, OF NAQKUL, NEW EAIPSEIRE, A CORPORATION OF IAINE- I men or m APPARATUS ma snnaarme roman ILTTER moi: rum

Application filed l'wembcr ll, 1919. flerial Io. 88,564.

To all whom it may concern:

Be it known that I, ANTON J. Have, a citizen of the United States, and a resident of Nashua, county of Hillsborough, and State of New Hampshire, have invented an Improvement in Methods of and Apparatus for Separating Foreign Matter from Paper Stock, of which the following description, in connection with the accompanying rawings, is a specification, like characters on the drawings representing like parts.

This invention relates to methods of and apparatus for separating foreign matter from paper stock and particularly sand, it, sedlment, sawdust, coal, metal, etc. The object of the invention-is to provide an improved means for and method of separating such'foreign matter providing foran efiicient separating action and im roved facilities for cleanin without inter e'rence with the operation 0 the process.

These and other objects of the invention will be best understood by reference to the following description when taken in connection with the accompanying illustration of one specific embodiment thereof, while its scope will be more particularly pointed out in the appended claims.

In the drawings v Figure 1 is a plan view of separating apparatus embodying one form of the invention and adapted to carry out one form .of the method;

Fi 2 is a sectional elevation taken on the fine 2-2 in Fig. 1 and showing the sepgarating apparatus therein;

ig. 3 is an end elevation, partially. in

paart of the igs. 1 and section, of the main or body separating apparatus shown 1n 2; an

Fig. 4 is a detail showing the flushing openings with their closures withdrawn Referring to the drawings and to the embodiment of the invention which is there shown for illustrative purposes, I have there showna pluralit of (and herein two) separating devices w ich for convenience are arranged parallel with each other and side by side upon the same table or support, but so related to the stock inlet that it e stock may be assed through the one or the other at While the location of these two separating chambers as is a convenient one,

shown in the drawings it will be understood that other relative positions may be adopted without departing from the spirit of the invent on.

The stock is fed to the apparatus throu h an inlet opening 1 from any suitable in st pipe (not shown), the two separating devices havin the same inlet as will be more fully ex lamed. The two separators are of substantially the same construction and it is necessary to describe the details of one only. Each device comprises a bottom 2 provided with sides 3 forming a channel or assage through which the stock flows, the

atter entering at the inlet end and emergmg at the opposite end where it is delivered to an outlet pipe 4, the outletpi for the two separators leading prefera ly into a common receiving .chamber. The outlet ends of the separating chambers are closed bythe end walls 5, preventing the escape of the stock except through the outlet, and the opposite ends are closed by the end wall 6. A- gate valve 7 hinged u on the casing at 8 is adapted to be move either to the 'full line position shown in Fig. 1 where it closes the separating chamber 10 to the inlet, orit may be moved to the dotted line position shown therein where it shuts 01! communication between the se arating chamber 20 and the inlet. When t e valve is moved to shut ofi the separating chamber 10 from the inflow of stock, the latter enters the chamber 20 through the inlet opening 21. .When it is moved to its 0 posits position to shut off the chamber 20,. t e flow of stock is immediately diverted to the separating chamber 10 through the inlet opene framework is bound together and stiffened by various suitable cross members 30, so that the apparatus resembles in outward appearance two elongated, separate, uncovers box like compartments with separate outlets and a common inlet with its controlling valve or gate whereby the incoming stock may be dlverted from one to the other at will.

The stock entering whichever chamber is connected with the inlet opening 1, first meets the baflle plate 31 and is compelled to flow throu h the space beneath the same and immediate comes in contact with the bafile plate or weir 32 arranged transversely across the bottom of the compartment. Between the plate 32 and a similar but preferably lower plate 33 near the outlet end of the compartment, there is provided a series of riflie plates 34 which are set into the strips 34 and34 lining the side walls of the cham- .ber. The rifile plates areinclined in the di rection of-flow of the stock and provide a series of intermediate settling chambers in i which the heavier sedimentitious material contained therein tends to settle through gravity. Any suitable number of these rifiie plates and settling chambers may be provided and preferably, though not necessarily, they are arranged in a descending scale of height sothat the highest plates and deepest settling chambers are located near the inlet end. 1

In the use of this apparatus thesettli chambers in the course of time become fille and clogged with foreign matter; and in order to facilitate its cleansing at suitable in.- tervals, the lining strips 34* are cut away between the-'rifile plates to provide'lateral flushing passage 36, the latter arranged at outlets 34, and the outer side wal1'3 of each chamber is-provided with one or more lateral openings 35 which open communication' between the settling chambers and a single gate for each side is utilized. The

gate or gates 40 controlling the flushing openings are secured to lever arms 41 mounted to move with the rock shaft 42, the latter carried in bearings provided by' a series of supporting members 43 fastened to the sides 3 and 38 of the flushing passage. The rock shaft is also secured (see Figs. 3 and 4) to an arm 44carrying at o its upper end the segmental worm gear 45 adapted to mesh with the worm 46 the shaft of which is journaled in the bracket 47 and carries. at its end the wheel 48. By

' turning the hand wheel 48, the rock shaft 42 may be turned through the described worm gearing and the gate or gates 40 moved to close the openings 35' gas shown in' Fig. 3) or to open the same as shown in Fig. 4). When the apparatus is in operation, the ates are closed as'shown in Fig. 3. en the apparatus is out of operation and itis desired to cleanse it, the gates are opened as shown in Fi 4 and a stream of flushing water turne into the various settling chambers, which washes the accumulated sediment through the openings 35 into the flushing passages 36 and down the drain pipe 39.

While the settling chambers might be provided with horizontal bottoms, to facilitate the cleansing of the settling chambers a bottom plate 49 is preferably interposed between the rifiie plates 34: and the bottom plate 2, the intermediate bottom plate 49 sloping laterall from the inner wall of the separating chamber to the outer Wall thereof, thereby providing a laterally sloping bottom for each settling chamber which slopes toward the flushing opening and assists in draining the sediment therethrough when the flushing water is turned'into the apparatus.

In the o eration of a separator of the kind descri ed, it is desirable to clean the apparatus from timeto time "with as little interferenceas possible with its normal op eration. In a-pparatus intended for this purpose, it is-usually necessary to perform the cleansing operation on nights or Sundays or, where this is not possible, to shut down the apparatus for a substantial period and interrupt its operation. In the described form of apparatus, not only are greatly improved means provided for facilitating the cleansing but through the utilization of the two cooperatively related separating devices the fiow of stock may be diverted from one chamber to the other without an interruption or even the slightest disturbance of the flow of the stock, so that the necessary frequent cleaning will not cause agitations and fluctuations in theprocess of sedimentation. It is highly desirable that the flow of the stock proceed smoothly and unin-' terruptedly for correctly carrying out the sedimentation, and such smooth flow is secured by the described form of apparatus. As soon as it becomes necessary to clean that side of the device which is in use, the gate valve is shifted, diverting the stock flow into the other side of the apparatus without agitation or disturbance of' the flow. 'The hand wheel on the side of the table whichhas just been cut out of use is then moved, opening the settlin chambers to the flushing passage, and ushing water forced in. The sloping bottoms of the settling chambers quickly wash away the collected sediment so that the gates can again be closed tightly and the apparatus is again in condition for use. The-apparatus may therefore be cleansed as frequently as desired without interrupting or disturbing the continuing flow of the stock and, the complete separation-of the foreign matter therefrom. The cleansing can be done with a minimum ex enditure of time and labor and ma be e ected at any time during the wor ing hours or otherwise.

While I have herein shown and described for purposes of illustration one specific form of the invention, it will be understood that the same is not limited to the specific construction orto the details herein shown or to the form or relative arrangement of parts, but that extensive deviations ma be .made therefrom without departing tom the spirit thereof.

Claims: i

1. An apparatus for separating foreign matter from paper stock presenting a passage for the unidirectional flow of stock provided with a plurality of settling chambers or recesses to receive sediment, each chamber having a valved opening to remove the accumulated sediment therefrom and said valved openings being collectively operable.

2. An apparatus for separating foreign matter from'paper stock presenting a passage for the unidirectional flow of stock provided with a plurality of settling chambers, each having a lateral valved opening to remove the accumulated sediment therefrom and said valved openings being -collectively operable. v

3. An apparatus for separating foreign matter from paper stock presenting a passage for the flow of stock provided with rifile plates forming a plurality of settling chambers and lateral valved openings to re- .move the accumulated sediment therefrom,-

said settling chambers having inclined bottoms sloping toward the said lateral openings and said valved openings being collectively operable.

4. An apparatus for separating foreign matter from paper stock having a plurality of settling chambers provided with sediment discharge openings normally closed and means for simultaneously opening said discharge passages.

5. An apparatus for separating foreign matter from paper stock presenting a passage for the flow of stock, a plurality of riflle plates providing intermediate settling chambers having inclinedbottoms sloping toward the side and having also openings at the side of thelower end of each chamber and movable closing means for the openings.

6. An apparatus for separating foreign matter from paper stock havinga series of rifiie plates with intermediate settling chambers over which the stock may be flowed, said settling chambers being provided with cleansing openings and one or more normally shut closures therefor, means for simultaneously moving said closures, the same comprising a rock shaft connected to the closures and a device for turning the rock shaft. v 7. A device for separating foreign matter from paper stock having a plurality of passages for the stock, each provided with one or more settling chambers, means to direct the flow of stock to either one of said passages to the exclusion of the other and without interruption in the flow thereof, whereby one may be utilized for separation while the other is being cleaned.

S. An apparatus for separating foreign matter from paper stock having a plurality of passages for the flow of stock, each provided with one or more settling chambers, said scttlin chambers having cleansing openings with cleansing means therefor, means for directing at will the flow of stock to one of said passages to the exclusion of the other whereby one may be utilized while the other is being cleaned.

9. An apparatus for separating foreign matter from paper stock presenting a 'plurality of passages for-the flow of stock, each having one or more settling chambers, said settling chambers havir 1g', ;each a lateral cleansing opening and'i'ui inclined bottom sloping laterally toward said opening, clos mg means whereby said openlngs maybe opened or closed 'atwilland means for-ldi-v recting at will the flow'of stock to either of said passages-to the exclusion of the other while the other is being cleaned.

10. A sand separator for. paper stock comprising a plurality of passages with oneor more separating chambers inaeach acommon inlet and a valve for directing the stock into either passage at will.

11. A sand separator for paper stock having a plurality of passages for the flow of the stock presenting each pne or more settling chambers, an inlet and a gate valve for directing the flow of stock to either paswherebv one mav be utilized for separation sage at will and without interruption ordisturbance of the flow.

12. A separator for paper stock having a plurality of settling passages arranged side by side, a common inlet and a gate valve for diverting the inflow of stock from one to the other at will.

' 13. The method of separating foreign matter from paper stock which consists in removing the foreign matter by sedimentation from the flowing stock while flowing 1 through a given path, diverting the flow of the stock without interruption to a. second path and removing the accumulated sediment from the first path while carrying on thehprocess of sedimentation in the second at I p In testimony whereof,'I have signedmy name to this specification.

ANTON J. HAUG. V 

